A.
SELECT 仓库号,COUNT(*),SUM(工资) FROM 职工 WHERE COUNT(*)>=4
B.
SELECT 仓库号,COUNT(*),SUM(工资) FROM 职工 GROUP BY 仓库号 SET COUNT(*)>=4
C.
SELECT 仓库号,COUNT(*),SUM(工资) FROM 职工 GROUP BY 仓库号 HAVING COUNT(*)>=4
D.
SELECT 仓库号,COUNT(*),SUM(工资) FROM 职工 GROUP BY 仓库号 WHERE COUNT(*)>=4